600 acres is a pretty fun place to try your 4wd out without the worries of pissing anyone off. Just a heads up if you get stuck and no one is out there don't expect a tow truck to come down there. You'll have to head into the local town (Solon, IA) and probably drag a farmer out of a bar, after buying a few rounds, as was the case for me one day. I do agree Hardcore drivers will probably find the area a bit lacking as space is limited to 600 acres making it possible to travel the entire area in less than half a day.